US4191061A - Solenoid-operated fuel flow control for fuel injection system - Google Patents

Solenoid-operated fuel flow control for fuel injection system Download PDF

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Publication number
US4191061A
US4191061A US05/914,349 US91434978A US4191061A US 4191061 A US4191061 A US 4191061A US 91434978 A US91434978 A US 91434978A US 4191061 A US4191061 A US 4191061A
Authority
US
United States
Prior art keywords
plunger
fuel
solenoid
flow control
lever
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US05/914,349
Other languages
English (en)
Inventor
Wayne R. Miller
David D. Latham
Joseph C. Spencer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deere and Co
Original Assignee
Deere and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deere and Co filed Critical Deere and Co
Priority to US05/914,349 priority Critical patent/US4191061A/en
Priority to CA328,199A priority patent/CA1107590A/en
Priority to MX177830A priority patent/MX148011A/es
Priority to FR7914553A priority patent/FR2428741A1/fr
Priority to DE2923560A priority patent/DE2923560C2/de
Priority to JP7343579A priority patent/JPS551494A/ja
Priority to GB7920239A priority patent/GB2023348B/en
Priority to IT49375/79A priority patent/IT1118864B/it
Priority to AR276890A priority patent/AR220200A1/es
Application granted granted Critical
Publication of US4191061A publication Critical patent/US4191061A/en
Priority to CA365,687A priority patent/CA1122864A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0205—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F7/1805—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18888—Reciprocating to or from oscillating
    • Y10T74/1892—Lever and slide
    • Y10T74/18968—Flexible connections

Definitions

  • This invention relates to fuel injection systems for internal combustion engines and more particularly relates to controls for moving fuel flow control levers of fuel injection pumps between fuel-on and fuel-off positions.
  • a novel control is provided for moving a fuel flow control lever between fuel-off and fuel-on positions.
  • a broad object of the invention is to provide a control which is relatively simple to manufacture, assemble and adjust and which operates to ensure that the fuel flow control lever will be maintained in its fuel-on position during normal operation with the fuel injection pump supplying fuel to the engine.
  • Another object of the invention is to provide a control including a solenoid having a plunger surrounded by a pair of coils and linked to the fuel flow control lever, the pair of coils being selectively simultaneously energizable to retract the plunger and effect movement of the lever to its fuel-on position, with one coil then becoming de-energized.
  • a further object of the invention is to provide a control including a resilient yieldable linkage connected to the fuel flow control lever and operable to move the lever against a stop at the fuel-on position, the linkage then continuing on to an overtravel position wherein it becomes yielded and exerts a biasing force urging the lever against the stop.
  • a linkage which comprises a pair of telescopically interconnected members having a tension spring extending therebetween.
  • FIG. 1 is a side elevational view of a solenoid-operated control for a fuel flow control lever with parts shown in section and with the solenoid shown in a de-energized condition.
  • FIG. 2 is a view similar to FIG. 1 but showing the solenoid in an energized condition.
  • FIG. 3 is an exploded perspective view of the length-adjustable, telescopic link shown connected between the solenoid and control lever in FIGS. 1 and 2.
  • FIG. 4 is a schematic of the electrical circuit for controlling the solenoid.
  • a fuel flow control system 10 including a fuel flow control lever 12 fixed to a shaft 14 which is journalled in a housing 16 and defines an axis about which the lever 12 is pivotable between a fuel-off position (FIG. 1), where it engages a fuel-off stop 18, and a fuel-on position (FIG. 2), where it engages a fuel-on stop 20.
  • Movement of the lever 12 between its fuel-off and fuel-on positions is effected by means of a selectively energizable solenoid 22 having an extendable and retractable plunger 24 connected to the lever 12 by means of a resiliently yieldable linkage 26.
  • the linkage 26 is a multipart assembly comprising an upper hexagonal rod 28 having a threaded hole (not shown) extending axially into the top thereof and receiving a threaded rod 30 formed by a reduced bottom end portion of the plunger 24 and held in place by a lock nut 32.
  • the linkage 26 may be easily lengthened or shortened for properly controlling the lever 12 by loosening the lock nut 32 and turning the rod 28 onto or off the threaded rod 30 and retightening the nut 32.
  • a smooth axial bore (not shown) extends upwardly in the bottom of the rod 28 and telescopically receives a cylindrical upper end portion 36 of a lower hexagonal rod 38.
  • a swivel 40 has a rounded end 41 universally received in a socket formed in the lower end of a special cap screw 42 threadedly received in a threaded bore (not shown) extending axially upwardly in the lower end of the rod 38.
  • a pin 44 is received in the eye of the bolt 40 and serves to pivotally connect the lower end of the linkage 26 to the fuel flow control lever 12.
  • the upper and lower hexagonal rods 28 and 38 respectively have pins 46 and 48 fixed to a projecting from respective sides thereof and a helically wound tension spring 50 encircles the rods 28 and 38 and has hooks 52 and 54 respectively formed at its upper and lower ends and received over the pins 46 and 48.
  • the length of the spring 50 is such that it occupies an unextended position (FIG. 1) when the plunger 24 is extended.
  • the plunger 24 When the solenoid 22 is de-energized, the plunger 24 is yieldable held in its extended position by means of a helically wound compression spring 56 encircling the plunger 24 and compressed between a lower end of a housing 58 of the solenoid and a washer 60 fixed between a nut 61 and a shoulder of the plunger 24.
  • the washer 60 forms the bottom of a flexible boot 62 having a ring 64 at its upper end fixed to the housing 58 such as to prevent dust from entering the solenoid housing along a path defined by the clearance between the plunger 24 and the housing 58.
  • the solenoid For the purpose of retracting the plunger 24 to its retracted position (FIG. 2), the solenoid includes an energizable coil assembly 66 located in the housing 58 in encircling relationship to the plunger and operable when energized to retract the plunger.
  • the coil assembly 66 includes main and pull-in coils 68 and 70, respectively.
  • the electrical circuit for controlling energization and de-energization of the coils 68 and 70 includes a battery 72 connected to a coil 74 of a relay 76 via a lead 78 which contains an ignition switch 80.
  • a plunger 82 of the relay 76 is connected to a normally-open switch 84, located in a power lead 86 connected between the battery and the solenoid coils 68 and 70, and operates when the coil 74 is energized, to close the switch 84 to energize the lead 86.
  • the solenoid coils 68 and 70 are connected to the lead 86 in parallel with each other and are connected to a ground lead 88 by respective leads 90 and 92.
  • the lead 92 contains a normally closed switch 94 located in the solenoid housing 58 above the plunger 24 for being engaged and opened thereby when the plunger is completely retracted.
  • the linkage 26 will normally be adjusted such that the fuel flow control lever 12 will contact the fuel-on stop 20 before the plunger 24 becomes fully retracted.
  • the tensile force exerted by the spring 50 is less than that required for moving the lever 12 from its fuel-off to its fuel-on position and consequently the spring remains unextended and yieldably holds the rods 28 and 38 in a collapsed condition until the lever engages the fuel-on stop 20.
  • the force capability of the solenoid 22 is greater than the spring tensile force and accordingly once the lever 12 engages the stop 20 further retraction or overtravelling of the plunger 24 results in the rods 28 and 38 becoming extended against the force of the spring 50, which also becomes extended as shown in FIG. 2. In this way it is ensured that the lever 12 will be securely held in its fuel-on position against the fuel-on stop to assure full fuel flow to the engine. Further, this overtravel feature eliminates the need for maintaining close manufacturing tolerances or the need to make precise adjustments after installation.
  • solenoid 22 and linkage 26 comprise a compact unit which may be completely assembled before being installed on an engine and that after installation proper adjustment can quickly be made.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)
US05/914,349 1978-06-12 1978-06-12 Solenoid-operated fuel flow control for fuel injection system Expired - Lifetime US4191061A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US05/914,349 US4191061A (en) 1978-06-12 1978-06-12 Solenoid-operated fuel flow control for fuel injection system
CA328,199A CA1107590A (en) 1978-06-12 1979-05-23 Solenoid-operated fuel flow control for fuel injection system
MX177830A MX148011A (es) 1978-06-12 1979-05-28 Mejoras a control de flujo de combustible operado por solenoide para un sistema de inyeccion de combustible
FR7914553A FR2428741A1 (fr) 1978-06-12 1979-06-07 Dispositif de commande de l'alimentation en carburant pour systeme d'injection de moteur a combustion interne
DE2923560A DE2923560C2 (de) 1978-06-12 1979-06-11 Elektromagnetisch betätigte Kraftstoffsteuervorrichtung für eine Einspritzvorrichtung einer Brennkraftmaschine
JP7343579A JPS551494A (en) 1978-06-12 1979-06-11 Solenoiddactuated fuel flow controller
GB7920239A GB2023348B (en) 1978-06-12 1979-06-11 Solenoid-operatec fuel vlow control device for fuel injection system
IT49375/79A IT1118864B (it) 1978-06-12 1979-06-11 Dispositivo di comando di carburante per un dispositivo di iniezione
AR276890A AR220200A1 (es) 1978-06-12 1979-06-12 Control de flujo de combustible
CA365,687A CA1122864A (en) 1978-06-12 1980-11-27 Solenoid-operated fuel flow control for fuel injection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/914,349 US4191061A (en) 1978-06-12 1978-06-12 Solenoid-operated fuel flow control for fuel injection system

Publications (1)

Publication Number Publication Date
US4191061A true US4191061A (en) 1980-03-04

Family

ID=25434235

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/914,349 Expired - Lifetime US4191061A (en) 1978-06-12 1978-06-12 Solenoid-operated fuel flow control for fuel injection system

Country Status (9)

Country Link
US (1) US4191061A (enrdf_load_stackoverflow)
JP (1) JPS551494A (enrdf_load_stackoverflow)
AR (1) AR220200A1 (enrdf_load_stackoverflow)
CA (1) CA1107590A (enrdf_load_stackoverflow)
DE (1) DE2923560C2 (enrdf_load_stackoverflow)
FR (1) FR2428741A1 (enrdf_load_stackoverflow)
GB (1) GB2023348B (enrdf_load_stackoverflow)
IT (1) IT1118864B (enrdf_load_stackoverflow)
MX (1) MX148011A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4922873A (en) * 1988-08-31 1990-05-08 Synchro-Start Electromechanical run/stop actuator for diesel engine
US20130321971A1 (en) * 2012-05-31 2013-12-05 Eaton Corporation Electronically-Controlled Solenoid
US10487957B2 (en) 2015-08-13 2019-11-26 Delavan Inc. Fluid valves
US20210284119A1 (en) * 2020-03-10 2021-09-16 Deere & Company Uni-directional redundant solenoid valve for brake actuator and system thereof
US11912253B2 (en) 2020-03-10 2024-02-27 Deere & Company Symmetrically redundant solenoid valve for brake actuator and system thereof

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57193729A (en) * 1981-05-25 1982-11-29 Nissan Motor Co Ltd Fuel shutoff device of fuel injection pump
DE3511731A1 (de) * 1985-03-30 1986-10-02 Robert Bosch Gmbh, 7000 Stuttgart Gaszufuehreinrichtung zum einlassen eines aus mindestens zwei komponenten bestehenden, brennbaren gasgemisches
JPS62185343U (enrdf_load_stackoverflow) * 1986-05-09 1987-11-25
DE4122879A1 (de) * 1991-07-11 1993-01-14 Bosch Gmbh Robert Kraftstoffeinspritzpumpe fuer brennkraftmaschinen
GB2298519A (en) * 1995-03-02 1996-09-04 Rover Group Indicating operation of a solenoid valve
GB2300306B (en) * 1995-04-25 2000-02-09 Pectel Control Systems Ltd Fluid injector systems

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE184507C (enrdf_load_stackoverflow) * 1906-09-12
US1307243A (en) * 1918-11-26 1919-06-17 Benjamin Cousins Shock-absorber for the polish or sucker-rods of oil-pumps.
US3233064A (en) * 1961-04-28 1966-02-01 Fmc Corp Miniature solenoid valve actuator
US3254660A (en) * 1963-12-19 1966-06-07 Itt Closure operator for valves
US3576473A (en) * 1968-07-11 1971-04-27 Robertshaw Controls Co Solenoid construction means or the like

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FR829295A (fr) * 1936-11-17 1938-06-17 Vaucanson Atel Perfectionnements aux circuits d'excitation d'appareils électro-magnétiques
CH211550A (de) * 1938-11-23 1940-09-30 Bosch Gmbh Robert Elektromagnetischer Schalter, insbesondere für Anlagen auf Fahrzeugen.
DE758605C (de) * 1940-04-11 1952-09-15 Bosch Gmbh Robert Elektromagnetische Steuervorrichtung mit einer Einzugs- und einer Haltewicklung
US2467063A (en) * 1945-12-20 1949-04-12 Adel Prec Products Corp Solenoid switch assembly
DE946909C (de) * 1952-10-26 1956-08-09 Theodor Stiebel Dipl Ing Dr Schaltschuetz
US2977947A (en) * 1957-01-08 1961-04-04 Ford Motor Co Fuel injection system
US2904026A (en) * 1957-04-29 1959-09-15 Acf Ind Inc Fuel injection system
US4078528A (en) * 1972-03-03 1978-03-14 Hitachi, Ltd. Fuel feed control device for internal combustion engine
JPS5112296Y2 (enrdf_load_stackoverflow) * 1973-07-31 1976-04-02
JPS5240364A (en) * 1975-09-26 1977-03-29 Hitachi Zosen Corp Detection method and detection float for molten metal surface in elect roslag casting
GB1582555A (en) * 1976-05-06 1981-01-14 Computer Driver Control Protection of internal combustion engines and/or vehicles embodying the same
DE2813256A1 (de) * 1977-06-17 1978-12-21 Lucas Industries Ltd Elektrisch betriebene linearbetaetigungsvorrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE184507C (enrdf_load_stackoverflow) * 1906-09-12
US1307243A (en) * 1918-11-26 1919-06-17 Benjamin Cousins Shock-absorber for the polish or sucker-rods of oil-pumps.
US3233064A (en) * 1961-04-28 1966-02-01 Fmc Corp Miniature solenoid valve actuator
US3254660A (en) * 1963-12-19 1966-06-07 Itt Closure operator for valves
US3576473A (en) * 1968-07-11 1971-04-27 Robertshaw Controls Co Solenoid construction means or the like

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4922873A (en) * 1988-08-31 1990-05-08 Synchro-Start Electromechanical run/stop actuator for diesel engine
US20130321971A1 (en) * 2012-05-31 2013-12-05 Eaton Corporation Electronically-Controlled Solenoid
US9496079B2 (en) * 2012-05-31 2016-11-15 Eaton Corporation Electronically-controlled solenoid
US10487957B2 (en) 2015-08-13 2019-11-26 Delavan Inc. Fluid valves
US11255454B2 (en) 2015-08-13 2022-02-22 Delavan Inc. Fluid valves
US20210284119A1 (en) * 2020-03-10 2021-09-16 Deere & Company Uni-directional redundant solenoid valve for brake actuator and system thereof
US11912253B2 (en) 2020-03-10 2024-02-27 Deere & Company Symmetrically redundant solenoid valve for brake actuator and system thereof
US12179724B2 (en) * 2020-03-10 2024-12-31 Deere & Company Uni-directional redundant solenoid valve for brake actuator and system thereof

Also Published As

Publication number Publication date
IT1118864B (it) 1986-03-03
GB2023348A (en) 1979-12-28
DE2923560A1 (de) 1979-12-13
DE2923560C2 (de) 1985-02-28
JPS551494A (en) 1980-01-08
IT7949375A0 (it) 1979-06-11
AR220200A1 (es) 1980-10-15
FR2428741B1 (enrdf_load_stackoverflow) 1985-05-10
CA1107590A (en) 1981-08-25
MX148011A (es) 1983-02-23
GB2023348B (en) 1982-07-14
FR2428741A1 (fr) 1980-01-11

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